The Jungle Bat spawns primarily on the Surface Jungle, but has also been known to spawn in the Underground Jungle. They are tough to kill with ranged weapons because of their size, so it is recommended to use melee weapons when engaging them. Weapons similar to the pickaxe or broadsword are useful, because their attacks affect all things above and in front of you. Jungle bats are the primary reason new players should stay away from jungle biomes, as they hit harder than demon eyes while having greater maneuverability and acceleration , bats might try to swarm players making them unable to move or defend themselves.

A jungle bat atacking a player.

Trivia

When trying to block Bats out, make sure you leave no gaps, as Bats can fit through 1 space.